fixes #940

tests/template/twrongopensymchoice.nim

@@ -0,0 +1,24 @@
+discard """
+  output: '''10'''
+"""
+
+# bug #940
+
+type 
+  Foo* = ref object 
+    b*: int
+
+proc new*(this: var Foo) = 
+  assert this != nil
+  this.b = 10
+
+proc new*(T: typedesc[Foo]): Foo =
+  system.new(result)
+  twrongopensymchoice.new(result)
+
+proc main =
+  var f = Foo.new()
+  echo f.b
+
+when isMainModule:
+  main()